2189139341 has 2 divisors, whose sum is σ = 2189139342. Its totient is φ = 2189139340.

The previous prime is 2189139311. The next prime is 2189139343. The reversal of 2189139341 is 1439319812.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2187526441 + 1612900 = 46771^2 + 1270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2189139341 is a prime.

Together with 2189139343, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2189139343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1094569670 + 1094569671.

It is an arithmetic number, because the mean of its divisors is an integer number (1094569671).

Almost surely, 2^2189139341 is an apocalyptic number.

It is an amenable number.

2189139341 is a deficient number, since it is larger than the sum of its proper divisors (1).

2189139341 is an equidigital number, since it uses as much as digits as its factorization.

2189139341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 41.

The square root of 2189139341 is about 46788.2393449465. The cubic root of 2189139341 is about 1298.4477213849.

The spelling of 2189139341 in words is "two billion, one hundred eighty-nine million, one hundred thirty-nine thousand, three hundred forty-one".